org.aopalliance.intercept
Interface Interceptor

A generic interceptor can intercept runtime events that occur
within a base program. Those events are materialized by (reified
in) joinpoints. Runtime joinpoints can be invocations, field
access, exceptions...

This interface is not used directly. Use the the sub-interfaces
to intercept specific events. For instance, the following class
implements some specific interceptors in order to implement a
debugger: